If the facts are as reported, then I'd tend to agree...
The illegal smoking issue aside, he was carrying a handgun (illegal in this country), started a fight when asked not to smoke (also illegal) and shot a man in the head (illegal), possibly killing him (illegal).
Quite frankly I don't like the idea of having to share a country with such a disgusting individual if all these things are true, and at the very least I think he should be locked up never to see the light of day again.